Question

One pipe can fill a tank four times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in: select one:



a. 126 min



b. 180 min.



c. 114 min



d. 144 min

Answer 1

correct answer is option no. C

Answer 2

the write answer is option C. i.e. 114 min